NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2020013 SUBJ: SVN52 (PRN31) FORECAST OUTAGE JDAY 079/1030 - JDAY 079/2230 1. NANU TYPE: FCSTDV NANU NUMBER: 2020013 NANU DTG: 161412Z MAR 2020 REFERENCE NANU: N/A REF NANU DTG: N/A SVN: 52 PRN: 31 START JDAY: 079 START TIME ZULU: 1030 START CALENDAR DATE: 19 MAR 2020 STOP JDAY: 079 STOP TIME ZULU: 2230 STOP CALENDAR DATE: 19 MAR 2020 2. CONDITION: GPS SATELLITE SVN52 (PRN31) WILL BE UNUSABLE ON JDAY 079 (19 MAR 2020) BEGINNING 1030 ZULU UNTIL JDAY 079 (19 MAR 2020) ENDING 2230 ZULU. 3. POC: CIVILIAN - NAVCEN AT 703-313-5900, HTTPS://WWW.NAVCEN.USCG.GOV MILITARY - GPS OPERATIONS CENTER at HTTPS://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541, COMM 719-567-2541, gpsoperationscenter@us.af.mil, HTTPS://GPS.AFSPC.AF.MIL MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN 276-3526. COMM 805-606-3526. JSPOCCOMBATOPS@US.AF.MIL